Open AccessImproved chromatic dispersion monitoring using single RF monitoring tone
Author(s) -
Andy Liu,
G.J. Pendock,
R.S. Tucker
Publication year - 2006
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.004611
Subject(s) - optics , dispersion (optics) , offset (computer science) , detector , materials science , residual , modal dispersion , radio frequency , polarization mode dispersion , fading , physics , telecommunications , computer science , dispersion shifted fiber , optical fiber , fiber optic sensor , decoding methods , algorithm , programming language
We demonstrate an improved chromatic dispersion monitoring technique using a single RF monitoring tone. Compared to conventional techniques using a single RF monitoring tone, our proposed technique is able to monitor the sign of the residual dispersion and doubles the monitoring range. Our proposed technique utilizes the RF fading caused by chromatic dispersion and a two-detector dispersion monitor setup, where a dispersion offset is inserted before one of the detectors. The observed monitoring error is less than +/-35 ps/nm over a 1300 ps/nm monitoring range. A small power penalty less than 0.5 dB is observed due to the addition of the RF monitoring tone. Our technique is more than twice as accurate as the conventional technique.